PRO-SPIRAL GASKETS
High-pressure gaskets are characterized by resistance to high pressures and large temperature fluctuations. The gasket sealing element (Spiral) is made of a V-shaped metal strip in combination with a soft sealing material such as expanded graphite or PTFE. The selection of the metal strip is made depending on the media and operating temperature. Spiral seals are made with an outer and/or inner ring.
PRO-SPIRAL PZ: equipped with an outer ring, so called centring;
PRO-SPIRAL PZW: equipped with an outer (centring) ring and an inner (reinforcing);
PRO-SPIRAL PW: equipped with an inner reinforcing ring;
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Filling material Application temperature [oC] ph Application Colour min max graphite 200 550 0-14 corrosive medium grey ptfe 200 250 0-14 corrosive medium white ceramic 200 1100 – very high temperature celadon mica 200 1000 – high temperatures pink
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Sealing element Tolerance [mm] Inner diameter of sealing element [mm] Width of sealing element [mm] Outer ring thickness [mm] Recommended thickness after installation [mm] standard 0,25 15 – 630 631 – 1600
1601 – 2000
35
30
203 3,2 – 3,4 4,8 7,2 0,35 100 – 3200 33 5 5,3 – 5,6 6,4 0,3 100 – 1600 1601- 3200
30 25
4 4,7 – 4,9 3,5
3,2
0,25 0,25
15 – 1000 15 – 1000
25 20
2 2,3 – 2,5 2,5 0,25 15 – 500 10 1,5 1,8 – 2,0